[vis] Fix ember rootElement
[vis] Fix ember rootElement

LinDA-tools/LindaWorkbench,LinDA-tools/LindaWorkbench,LinDA-tools/LindaWorkbench,LinDA-tools/LindaWorkbench,LinDA-tools/LindaWorkbench,LinDA-tools/LindaWorkbench,LinDA-tools/LindaWorkbench